/**
 *    Copyright (C) 2008, 2009  Victor Smirnov <aist11@gmail.com>
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License along
 *    with this program; if not, write to the Free Software Foundation, Inc.,
 *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 *    See LICENSE.exceptions in the root folder of this project for possible
 *    exceptions
 *
 */

#ifndef __CUBEFS_CORE_BTREE_ITERATOR_TOOLS_H
#define __CUBEFS_CORE_BTREE_ITERATOR_TOOLS_H

#include <iostream>

#include <cubefs/api/types.hpp>
#include <cubefs/core/container/container.hpp>
#include <cubefs/core/btree/names.hpp>


namespace cubefs    {
namespace ctr       {

using namespace cubefs::btree;


CUBEFS_ITERATOR_PART_BEGIN(IteratorToolsName)

    typedef typename Base::NodeBase                                             NodeBase;
    typedef typename Base::Model                                                Model;
    typedef typename Model::Key                                                 Key;
    typedef typename Model::Value                                               Value;

    NodeBase* GetParent(NodeBase *node)
    {
        return me_.model().GetParent(node);
    }

    Int GetChildrenCount(NodeBase *node)
    {
        return me_.model().GetChildrenCount(node);
    }

    NodeBase *GetChild(NodeBase *node, Int idx) {
        return me_.model().GetChild(node, idx);
    }

    NodeBase* GetLastChild(NodeBase *node)
    {
        return me_.model().GetLastChild(node);
    }

    Value GetData() {
        return me_.model().GetLeafData(me_.page(), me_.key_idx());
    }

    Key GetKey(Int keyNum = 0) {
        return Model::GetKey(me_.page(), keyNum, me_.key_idx());
    }

CUBEFS_ITERATOR_PART_END

}
}

#endif //__CUBEFS_CORE_BTREE_ITERATOR_TOOLS_H
